Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Fox3D Dental Solutions, F-47450 Colayrac St Cirq, France.
Laboratoire des Multimatériaux et Interfaces, CNRS, LMI UMR 5615, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69622 Villeurbanne, France; Faculte d'Odontologie, Universite Claude Bernard Lyon 1, Universite de Lyon, F-69008 Lyon, France.
Dent Mater. 2024 Nov;40(11):1854-1861. doi: 10.1016/j.dental.2024.07.036. Epub 2024 Aug 27.
New materials have emerged in the dental field to replace the cobalt-chrome (CoCr) alloy used for the metal frameworks in removable partial denture (RPD) such as Titanium (Ti) and PolyEtherEtherKetone (PEEK). However, few studies have demonstrated their mechanical and biological performance.
The purpose of this systematic review was to compare the performance of Ti and PEEK in RPD using CoCr metal framework as a reference.
This review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Three data bases were analyzed, including PubMed/MEDLINE, Embase and Web of Science before March 2024. Only studies assessing the mechanical and/or biological properties of RPD in Ti, PEEK and CoCr were included. The quality of the studies was assessed by using the software Rayyan. The risks of bias were assessed with the methodological index for nonrandomized studies (MINORS). The mechanical (retention force, fatigue life, deformation strength, machinability, rigidity, porosity and surface roughness) and biological (plaque indices, ion release and biocompatibility) aspects were assessed.
Among 138 articles identified, only 18 studies were included in this review. Majority had a low to moderate risk of bias. Retention forces and fatigue were significantly lower for Ti and PEEK than for CoCr, and the same was true for Ti rigidity. PEEK showed less deformation. Both materials were suitable for machining. In terms of biological properties, both materials showed adequate biocompatibility for clinical use.
Ti and PEEK seems to be promising as alternative materials to CoCr frameworks for RPD, in terms of both their mechanical and biological performance. However, additional studies are needed to better understand their clinical and long-term limitations to enable the best-informed clinical choice for the patients and the professionals.
牙科领域出现了新的材料来替代可摘局部义齿（RPD）金属支架中使用的钴铬合金（CoCr），如钛（Ti）和聚醚醚酮（PEEK）。然而，很少有研究表明它们的机械和生物学性能。
本系统评价的目的是比较 Ti 和 PEEK 在 RPD 中的性能，以 CoCr 金属支架为参考。
本研究遵循系统评价和荟萃分析的首选报告项目（PRISMA）指南。在 2024 年 3 月之前，分析了包括 PubMed/MEDLINE、Embase 和 Web of Science 在内的三个数据库。仅纳入评估 Ti、PEEK 和 CoCr 制作 RPD 的机械和/或生物学性能的研究。使用软件 Rayyan 评估研究质量。使用非随机研究方法学指数（MINORS）评估偏倚风险。评估了机械方面（固位力、疲劳寿命、变形强度、可加工性、刚性、孔隙率和表面粗糙度）和生物学方面（菌斑指数、离子释放和生物相容性）。
在确定的 138 篇文章中，仅有 18 篇研究被纳入本综述。大多数研究的偏倚风险为低至中度。Ti 和 PEEK 的固位力和疲劳寿命明显低于 CoCr，Ti 的刚性也是如此。PEEK 的变形较小。两种材料都适合加工。在生物学性能方面，两种材料均表现出足够的生物相容性，适用于临床应用。
Ti 和 PEEK 似乎是 CoCr 框架的有前途的替代材料，在机械和生物学性能方面都有优势。然而，需要更多的研究来更好地了解它们的临床和长期局限性，以便为患者和专业人员做出最佳的临床选择。
